using System;
using System.Collections.Generic;
using System.Text;

namespace Embed
{
    class Program
    {
        static void Main(string[] args)
        {
            for (int y = 1; y <= 7; y++)
            {
                for (int x = 1; x <= y; x++)
                {
                    Console.Write(x);
                }
                Console.WriteLine();//换行
            }
        }
    }
}